Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros

Detalhes bibliográficos
Autor(a) principal: Lopes, Francisco Canindé
Data de Publicação: 2015
Tipo de documento: Tese
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFERSA
Texto Completo: https://repositorio.ufersa.edu.br/handle/tede/316
Resumo: Trypanosomiasis by Trypanossoma vivax is exotic disease of African origin increasingly common in Brazil, where reports of outbreaks in ruminants in the semiarid northeast are associated with high mortality, decrease in productive performance and economic losses. This study aimed to evaluate the clinical, epidemiological, production and quality of milk during natural infection by T. vivax in dairy cattle in western Rio Grande do Norte and verified the effect of infection on performance in experimentally infected dairy goats. This is the first Trypanosomiasis outbreak of T. vivax in dairy cattle herd occurred in properties located in the rural municipality of Mossoró-RN. Found 42 animals with trypomastigotes of T. vivax by smear of buffy coat in 467 cattle crossbred dairy breeds. High fever, anemia, decreased milk production, unilateral and bilateral tearing were the most frequent clinical signs. All cows with the parasite had sudden drop in milk production, and the physicochemical characteristics changed values, where the averages of lactose, fat, protein and density milk group with parasite was different from the healthy group. Influence of infection by T. vivax on the lactation curve behavior and the quality of milk in experimentally infected dairy goats was studied using 20 Saanen goats second lactation divided in two groups: the infected group, consisting of ten goats infected intravenously with approximately 1.25 x 105 trypomastigotes of T. vivax and ten animals were used as control. Milk production was measured every day for 152 days, by means of hand milking and weighing of the milk. To analyze the lactation curve parameters was used Wood model. Infected goats showed high parasitemy and hyperthermia addition to significant hematocrit reduction, serum total protein, albumin, glucose, cholesterol and increase in the urea concentration. Wood model showed that there was difference (P <0.05) to increase the rate values of milk production up to the peak, decline rate of milk production after the peak, milk production day at the peak, maximum milk production at peak and persistency of lactation in goats experimentally infected group compared goats in the control group, and physico-chemical characteristics of milk as fat, nonfat dry stratum, density and protein decreased significantly (P <0.05) in the group infected goats compared goats in the control group
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spelling Batista, Jael Soareshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4799273E2Freitas, Carlos Iberê Alveshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782961H1Silva, Jean Berg Alves dahttp://lattes.cnpq.br/1849041497210600Lima, José Ticiano Arruda Ximenes dehttp://lattes.cnpq.br/2820469940582654http://lattes.cnpq.br/2702769448160084Lopes, Francisco Canindé2016-08-15T20:28:00Z2016-06-092015-02-27LOPES, Francisco Canindé. Natural and experimental infection of Trypanosoma vivax in dairy herds. 2015. 126 f. Tese (Doutorado em Sanidade e Produção Animal) - Universidade Federal Rural do Semi-Árido, Mossoró, 2015.https://repositorio.ufersa.edu.br/handle/tede/316Trypanosomiasis by Trypanossoma vivax is exotic disease of African origin increasingly common in Brazil, where reports of outbreaks in ruminants in the semiarid northeast are associated with high mortality, decrease in productive performance and economic losses. This study aimed to evaluate the clinical, epidemiological, production and quality of milk during natural infection by T. vivax in dairy cattle in western Rio Grande do Norte and verified the effect of infection on performance in experimentally infected dairy goats. This is the first Trypanosomiasis outbreak of T. vivax in dairy cattle herd occurred in properties located in the rural municipality of Mossoró-RN. Found 42 animals with trypomastigotes of T. vivax by smear of buffy coat in 467 cattle crossbred dairy breeds. High fever, anemia, decreased milk production, unilateral and bilateral tearing were the most frequent clinical signs. All cows with the parasite had sudden drop in milk production, and the physicochemical characteristics changed values, where the averages of lactose, fat, protein and density milk group with parasite was different from the healthy group. Influence of infection by T. vivax on the lactation curve behavior and the quality of milk in experimentally infected dairy goats was studied using 20 Saanen goats second lactation divided in two groups: the infected group, consisting of ten goats infected intravenously with approximately 1.25 x 105 trypomastigotes of T. vivax and ten animals were used as control. Milk production was measured every day for 152 days, by means of hand milking and weighing of the milk. To analyze the lactation curve parameters was used Wood model. Infected goats showed high parasitemy and hyperthermia addition to significant hematocrit reduction, serum total protein, albumin, glucose, cholesterol and increase in the urea concentration. Wood model showed that there was difference (P <0.05) to increase the rate values of milk production up to the peak, decline rate of milk production after the peak, milk production day at the peak, maximum milk production at peak and persistency of lactation in goats experimentally infected group compared goats in the control group, and physico-chemical characteristics of milk as fat, nonfat dry stratum, density and protein decreased significantly (P <0.05) in the group infected goats compared goats in the control groupA tripanossomíase por Trypanossoma vivax é uma enfermidade exótica, de origem africana, cada vez mais frequente no território brasileiro, cujos relatos de surtos em ruminantes no semiárido nordestino estão associados à alta mortalidade, diminuição no desempenho produtivo e perdas econômicas. Este trabalho buscou avaliar os aspectos clínicos, epidemiológicos, produtivos e qualidade do leite durante infecção natural por T. vivax em bovinos leiteiros na região oeste do Rio grande do Norte e verificou o efeito da infecção sobre o desempenho produtivo em cabras leiteiras experimentalmente infectadas. Trata-se do primeiro surto de Tripanossomíase por T. vivax em rebanho bovino leiteiro ocorrido em propriedades localizadas na zona rural do município de Mossoró-RN. Foram encontradas 42 tripomastigotas de T. vivax pelo esfregaço da camada leucocitária em 467 bovinos de raças mestiças leiteiras. Febre alta, anemia, queda na produção de leite, lacrimejamento uni ou bilateral foram os sinais clínicos mais frequentes. Todas as vacas parasitadas tiveram queda brusca na produção de leite, e as características físico-químicas valores alterados, onde as médias dos teores de lactose, gordura, proteína e densidade do leite do grupo parasitado se mostrou diferente dos sadios. A influência da infecção por T. vivax sobre o comportamento da curva de lactação e a qualidade do leite em cabras leiteiras experimentalmente infectadas foi estudada utilizando 20 cabras da raça Saanen de segunda lactação divididos em dois grupos experimentais: o grupo infectado, constituído por dez cabras infectadas por via intravenosa com aproximadamente 1,25 x 105 tripomastigotas de T. vivax e outros dez animais foram destinados ao grupo controle. A produção do leite foi aferida diariamente durante 152 dias, mediante ordenha manual e pesagem do leite. Para análise dos parâmetros da curva de lactação, utilizou-se o modelo Wood. As cabras infectadas apresentaram altas parasitemias e hipertermia, além de redução significativa do hematócrito e dos níveis séricos de proteína total, albumina, glicose, colesterol e aumento na concentração de ureia. O modelo Wood mostrou que ocorreu diferença (P<0,05) para os valores da taxa de acréscimo da produção de leite até o pico, taxa de declínio de produção de leite após o pico, dia de produção de leite no pico, produção máxima de leite no pico e persistência da lactação no grupo de cabras infectadas experimentalmente em relação as cabras do grupo controle, e as características físico-química do leite relacionadas aos teores de gordura, ESD, densidade e proteína diminuíram significativamente (P <0,05) nas cabras do grupo infectado em relação as cabras do grupo controleCoordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfhttp://repositorio.ufersa.edu.br/retrieve/701/FranciscoCL_DISSERT.pdf.jpgporUniversidade Federal Rural do Semi-ÁridoPrograma de Pós-Graduação em Ciência AnimalUFERSABRCentro de Ciências Agrárias - CCACC-BY-SAinfo:eu-repo/semantics/openAccessVeterinary pathologyMilky cowDairy goatLactation curveMilk compositionPatologia veterináriaVaca leiteiraCabra leiteiraCurva de lactaçãoComposição do leiteCNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIAInfecção natural e experimental de trypanosoma vivax em rebanhos leiteirosNatural and experimental infection of Trypanosoma vivax in dairy herdsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisreponame:Biblioteca Digital de Teses e Dissertações da UFERSAinstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSATEXTFranciscoCL_DISSERT.pdf.txtFranciscoCL_DISSERT.pdf.txtExtracted texttext/plain179360https://repositorio.ufersa.edu.br//bitstream/tede/316/3/FranciscoCL_DISSERT.pdf.txtd83bd313becf236fe034abea6a3daa01MD53ORIGINALFranciscoCL_DISSERT.pdfapplication/pdf1013967https://repositorio.ufersa.edu.br//bitstream/tede/316/1/FranciscoCL_DISSERT.pdfa197e5825cf00fce85fcefac99ddcfcfMD51THUMBNAILFranciscoCL_DISSERT.pdf.jpgFranciscoCL_DISSERT.pdf.jpgGenerated Thumbnailimage/jpeg3220https://repositorio.ufersa.edu.br//bitstream/tede/316/2/FranciscoCL_DISSERT.pdf.jpg3833e88c37db97c022baa994b334be9eMD52tede/3162022-07-05 15:44:35.362oai:repositorio.ufersa.edu.br:tede/316Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufersa.edu.br/PUBhttp://bdtd.ufersa.edu.br/oai/requestdirecaosisbi@ufersa.edu.br|| direcaosisbi@ufersa.edu.bropendoar:2022-07-05T18:44:35Biblioteca Digital de Teses e Dissertações da UFERSA - Universidade Federal Rural do Semi-Árido (UFERSA)false
dc.title.por.fl_str_mv Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros
dc.title.alternative.eng.fl_str_mv Natural and experimental infection of Trypanosoma vivax in dairy herds
title Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros
spellingShingle Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros
Lopes, Francisco Canindé
Veterinary pathology
Milky cow
Dairy goat
Lactation curve
Milk composition
Patologia veterinária
Vaca leiteira
Cabra leiteira
Curva de lactação
Composição do leite
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA
title_short Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros
title_full Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros
title_fullStr Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros
title_full_unstemmed Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros
title_sort Infecção natural e experimental de trypanosoma vivax em rebanhos leiteiros
author Lopes, Francisco Canindé
author_facet Lopes, Francisco Canindé
author_role author
dc.contributor.advisor1.fl_str_mv Batista, Jael Soares
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4799273E2
dc.contributor.advisor-co1.fl_str_mv Freitas, Carlos Iberê Alves
dc.contributor.advisor-co1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782961H1
dc.contributor.referee1.fl_str_mv Silva, Jean Berg Alves da
dc.contributor.referee1Lattes.fl_str_mv http://lattes.cnpq.br/1849041497210600
dc.contributor.referee2.fl_str_mv Lima, José Ticiano Arruda Ximenes de
dc.contributor.referee2Lattes.fl_str_mv http://lattes.cnpq.br/2820469940582654
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/2702769448160084
dc.contributor.author.fl_str_mv Lopes, Francisco Canindé
contributor_str_mv Batista, Jael Soares
Freitas, Carlos Iberê Alves
Silva, Jean Berg Alves da
Lima, José Ticiano Arruda Ximenes de
dc.subject.eng.fl_str_mv Veterinary pathology
Milky cow
Dairy goat
Lactation curve
Milk composition
topic Veterinary pathology
Milky cow
Dairy goat
Lactation curve
Milk composition
Patologia veterinária
Vaca leiteira
Cabra leiteira
Curva de lactação
Composição do leite
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA
dc.subject.por.fl_str_mv Patologia veterinária
Vaca leiteira
Cabra leiteira
Curva de lactação
Composição do leite
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA
description Trypanosomiasis by Trypanossoma vivax is exotic disease of African origin increasingly common in Brazil, where reports of outbreaks in ruminants in the semiarid northeast are associated with high mortality, decrease in productive performance and economic losses. This study aimed to evaluate the clinical, epidemiological, production and quality of milk during natural infection by T. vivax in dairy cattle in western Rio Grande do Norte and verified the effect of infection on performance in experimentally infected dairy goats. This is the first Trypanosomiasis outbreak of T. vivax in dairy cattle herd occurred in properties located in the rural municipality of Mossoró-RN. Found 42 animals with trypomastigotes of T. vivax by smear of buffy coat in 467 cattle crossbred dairy breeds. High fever, anemia, decreased milk production, unilateral and bilateral tearing were the most frequent clinical signs. All cows with the parasite had sudden drop in milk production, and the physicochemical characteristics changed values, where the averages of lactose, fat, protein and density milk group with parasite was different from the healthy group. Influence of infection by T. vivax on the lactation curve behavior and the quality of milk in experimentally infected dairy goats was studied using 20 Saanen goats second lactation divided in two groups: the infected group, consisting of ten goats infected intravenously with approximately 1.25 x 105 trypomastigotes of T. vivax and ten animals were used as control. Milk production was measured every day for 152 days, by means of hand milking and weighing of the milk. To analyze the lactation curve parameters was used Wood model. Infected goats showed high parasitemy and hyperthermia addition to significant hematocrit reduction, serum total protein, albumin, glucose, cholesterol and increase in the urea concentration. Wood model showed that there was difference (P <0.05) to increase the rate values of milk production up to the peak, decline rate of milk production after the peak, milk production day at the peak, maximum milk production at peak and persistency of lactation in goats experimentally infected group compared goats in the control group, and physico-chemical characteristics of milk as fat, nonfat dry stratum, density and protein decreased significantly (P <0.05) in the group infected goats compared goats in the control group
publishDate 2015
dc.date.issued.fl_str_mv 2015-02-27
dc.date.accessioned.fl_str_mv 2016-08-15T20:28:00Z
dc.date.available.fl_str_mv 2016-06-09
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
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dc.identifier.citation.fl_str_mv LOPES, Francisco Canindé. Natural and experimental infection of Trypanosoma vivax in dairy herds. 2015. 126 f. Tese (Doutorado em Sanidade e Produção Animal) - Universidade Federal Rural do Semi-Árido, Mossoró, 2015.
dc.identifier.uri.fl_str_mv https://repositorio.ufersa.edu.br/handle/tede/316
identifier_str_mv LOPES, Francisco Canindé. Natural and experimental infection of Trypanosoma vivax in dairy herds. 2015. 126 f. Tese (Doutorado em Sanidade e Produção Animal) - Universidade Federal Rural do Semi-Árido, Mossoró, 2015.
url https://repositorio.ufersa.edu.br/handle/tede/316
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dc.publisher.department.fl_str_mv Centro de Ciências Agrárias - CCA
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